McGrath Beach berm

KAREN QUINCY LOBERG/THE STAR Sand erodes on the north side of the berm on Tuesday that once helped to hold back water that submerged McGrath State Park Beach.

Karen Quincy Loberg

KAREN QUINCY LOBERG/THE STAR Margery Spielman, a naturalist, helps a frog back to safety Tuesday at McGrath State Beach. A berm that had kept the park submerged was breached Monday night or early Tuesday.

Water from McGrath State Beach flows out to sea at left as the tide makes its way in at right Tuesday at the campground between Ventura and Oxnard. The berm that held the water in the campground has been breached, but it’s unclear how.